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THE MAY TORNADOES...KILLI NG MORE THAN 30 OKLAHOMANS. TODAY, THE NATIONAL WEATHER SERVICE LOOKED BACK TO TRY AND GET AHEAD FOR THIS STORM SEASON. METEOROLOGIST DANIELLE DOZIER EXPLAINS WHAT THEY'VE LEARNED...AND HOW IT CAN KEEP YOU SAFER. 22:09:54--22:10:08 I'M HERE AT THE NATIONAL WEATHER CENTER IN NORMAN WHERE THE WEATHER SERVICE JUST ISSUED THEIR ASSESSMENT ON THE MAY TORNADOES. TOPICS RANGED FROM HOW WELL SOCIAL MEDIA WORKED TO THE DANGERS OF STORM CHASING--ALL IN AN ATTEMPT TO PREPARE YOU FOR THE UPCOMING STORM SEASON. ONE OF THE BIGGEST THINGS THEY FOUND- 21:55:13-21:55:19 social media is, is getting to be a more and more important part of people's communications for severe weather here 21:55:41-21:55:43 they told us that fb and twitter were really their lifelines for information RICK SMITH STRESSES SOCIAL MEDIA SHOULD NOT HOWEVER, BE YOUR FIRST SOURCE OF WARNING, BUT RATHER A WEATHER RADIO OR TELEVISION. DURING THE MAY 20 TORNADO-- 21:52:02-21:52:10 one of the other key things we were able to provide, tornado damage track maps to first responders, emergency officials even while the tornado was still going on GIVING FIRST RESPONDERS MORE TIME TO GET TO THOSE BADLY INJURED. AND IN EL RENO, AN EF-3 TORNADO KILLED FOUR STORM CHASERS. THEY WERE AMONG EIGHT WHO LOST THEIR LIVES THAT DAY. 22:16:57-22:17:10 WE ALSO LEARNED ON MAY 31 IT WAS THE DEADLIEST FLASH FLOODING EVENT IN OKLAHOMA CITY HISTORY. THIRTEEN PEOPLE LOST THEIR LIVES DUE TO FLASH FLOODING, SOME OF WHOM SOUGHT SHELTER FROM THE TORNADO IN STORM DRAINS LIKE THESE. SMITH SAYS THE BEST THING TO DO IN THE EVENT OF A COMBINED TORNADO AND FLOOD THREAT IS SHELTER IN PLACE. 22:03:52-22:04:00 one of the things we are looking at is providing a consistent message to people about what they should and should not be doing during in a tornado. METEOROLOGIST DANIELLE DOZIER, KOCO 5 NEWS. THE WEATHER SERVICE SAYS ONE OF THE BIGGEST OBSTACLES IS